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GeForce 8800 GT 1GB vs GeForce 8800 GT 512MB
Intro
The GeForce 8800 GT 1GB uses a 65 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 memory is set to run at a speed of 900 MHz on this specific model. It features 112 SPUs along with 56 TAUs and 16 ROPs.Compare those specs to the GeForce 8800 GT 512MB, which comes with a GPU core clock speed of 600 MHz, and 512 MB of GDDR3 memory running at 900 MHz through a 256-bit bus. It also is comprised of 112 SPUs, 56 TAUs, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have the exact same memory bandwidth, so theoretically they should have identical performance. (explain)
Texel Rate
Both cards have the exact same texel fill rate, so in theory they should perform equally good at at AF. (explain)Pixel Rate
Both cards have the exact same pixel rate, so in theory they should perform equally good at at AA, and be able to handle the same screen resolutions. (explain)
Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Price Comparison
GeForce 8800 GT 1GBAmazon.com
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GeForce 8800 GT 512MBAmazon.com
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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
Specifications
| Model | GeForce 8800 GT 1GB | GeForce 8800 GT 512MB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | Dec 2007 | Oct 2007 |
| Code Name | G92 | G92 |
| Memory | 1024 MB | 512 MB |
| Core Speed | 600 MHz | 600 MHz |
| Memory Speed | 1800 MHz | 1800 MHz |
| Power (Max TDP) | 105 watts | 105 watts |
| Bandwidth | 57600 MB/sec | 57600 MB/sec |
| Texel Rate | 33600 Mtexels/sec | 33600 Mtexels/sec |
| Pixel Rate | 9600 Mpixels/sec | 9600 Mpixels/sec |
| Unified Shaders | 112 | 112 |
| Texture Mapping Units | 56 | 56 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | GDDR3 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 65 nm | 65 nm |
| Transistors | 754 million | 754 million |
| Bus | PCIe x16 2.0 | PCIe x16 2.0 |
| DirectX Version | DirectX 10 | DirectX 10 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.0 |
Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.
GeForce 8800 GT 1GBAmazon.com
Check prices at:
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GeForce 8800 GT 512MBAmazon.com
Check prices at:
|
Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
|
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